Return your purchase within 90 days at no cost.

| 1995 - 1995 | Kia | Sephia |
| 1996 - 1997 | Kia | Sephia |
| 1994 - 1994 | Mazda | MX-3 |
| 1994 - 1994 | Mazda | MX-3 |
| 1995 - 1995 | Mazda | MX-3 |
| 1995 - 1998 | Mazda | Protege |
| 1998 - 1999 | Mazda | 626 |
The order will be dispatched within 1 business day, and the package will arrive within your order's estimated date. Please click Shipping Policy for more details.
Every order comes with a 90-day free return which means you don't have to pay for a return slip. Please click Return Policy for more details.
All parts are quality-tested to meet the top-tier aftermarket standards. Please click Warranty Policy for more details.
Small part, big performance boost: the Delphi ES10366 Oxygen Sensor at A-Premium is all about cleaner emissions and better mileage. Featuring a fast-acting heated element and special poison-protection plating, this sensor begins delivering accurate data seconds after cold start—reducing emissions and ensuring your ECU gets critical info fast. The double-layer protection shields ward off water, vibration, and extreme heat, while an anti-seize compound makes install straightforward and ensures the sensor won’t weld in. Whether you’re chasing down a check engine light or just working ahead of maintenance, customers see immediate gains in idle, power, and even smoother shifting. The direct-fit plug and robust construction guarantee it’s built to last, and if you ever need diagnostic tips or fitment advice, A-Premium’s expert help is always a click away. Upgrade today and enjoy the Delphi difference for every commute or road trip.
Return your purchase within 90 days at no cost.
Free standard shipping on all orders, no minimum required.
Get assistance from live customer service team 24/7.
We guarantee that all parts will fit your vehicle perfectly.
Attention to customers from California:
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov/.